My wife and I live in an alternate universe. It’s called “RV Land.” We inhabit a vibrant subculture in which people live full-time in various types of recreational vehicles. An RV is a little home on wheels, able to carry computers and camera gear along with a full life support system. It requires a diet of gasoline but the expense seems trivial as we pass hundreds of motels...

The earth rotates tilted on its axis approximately 23Þ. This fact renders most forms of astrophotography maddeningly complex. There is one form of night sky photography that is given to us in relative simplicity by our home planet's relentless spin: star trails. All we need to create gorgeous star trail shots is a camera, a tripod, and a remote or cable release....